diff --git a/src/Extension/H264.h b/src/Extension/H264.h
index 6065aad0..4f7a3e90 100644
--- a/src/Extension/H264.h
+++ b/src/Extension/H264.h
@@ -138,7 +138,7 @@ private:
     void insertConfigFrame(const Frame::Ptr &frame);
 
 private:
-    bool _insert_config_frame = false;
+    bool _latest_is_config_frame = false;
     int _width = 0;
     int _height = 0;
     float _fps = 0;
@@ -147,4 +147,4 @@ private:
 };
 
 }//namespace mediakit
-#endif //ZLMEDIAKIT_H264_H
\ No newline at end of file
+#endif //ZLMEDIAKIT_H264_H